Disposable ashtray



FIG. 1 is a perspective view of a disposable ashtray showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is an end view thereof;

FIG. 4 is a bottom view thereof; and

FIG. 5 is a side view thereof. 

The ornamental design for a disposable ashtray, as shown. 